4: Connective Tissue Flashcards

1
Q

3 types of CT proper

A

loose irregular, dense irregular, dense regular

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2
Q

What is amorphous ground substance composed of?

A

proteoglycans, glycosaminoglycans, and interstitial fluid

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3
Q

What is the major cell of CT proper?

A

fibroblasts

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4
Q

What are cells found in CT proper?

A

fibroblasts, plasma cells, eosinophils, macrophages, mast cells, adipose cells

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5
Q

T/F: Fibroblasts can de-differentiate to become other connective tissue cell types

A

T

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6
Q

Where are mast cells most common?

A

loose CT in skin and intestine

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7
Q

What are mast cells rich in?

A

histamine and heparin

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8
Q

Which cells have a wagon wheel or clock appearance?

A

plasma cells

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9
Q

What is the most common fiber?

A

collagen type I

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10
Q

Where are collagen type I fibers found?

A

dermis, fascia, bone, ligaments, and tendons

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11
Q

How are collagen type I fibers organized?

A

regular or irregular arranged bundles and layers in dense CT

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12
Q

Procollagen

A

made and secreted by fibroblasts

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13
Q

What does procollagen cross link with?

A

tropocollagen

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14
Q

What fibers are seen with a silver stain?

A

reticular fibers

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15
Q

Which fibers look like a fragile lattice?

A

reticular fibers

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16
Q

What collagen type do reticular fibers contain?

A

type III collagen

17
Q

Where are elastic fibers located?

A

vocal cords, epiglottis, lungs, aorta, dermis

18
Q

What protein do elastic fibers contain?

A

elastin